Why not have blade guards that changed colour with the temperature?
 Introducing new  Chameleon blade guards from Guardog Canada
Leave the warm dressing room wearing blue Guardogs and after a while in the cold arena theyve magically changed to green!

 ChameleonZ  are also available in pink to purple 
About Guardog
Over a quarter century ago, Guardog - created the world's first two-piece, mix 'n match skate guard.
Throughout the years of innovation, millions of skaters, including countless internationally-renowned professional and amateur competitors, have relied on these guards for blade protection.
Suitable for both types of figure & hockey skates
Simple assembly is required and can be trimmed before assembly for a perfect fit